Merge pull request DSpace#11358 from DSpace/backport-11330-to-dspace-7_x

[Port dspace-7_x] Fix (DSpace#9694): Change Solr dynamic field *.year to *_year

Author: tdonohue

dspace/solr/search/conf/schema.xml

@@ -324,7 +324,7 @@
     <dynamicField name="*_mlt" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true" termVectors="true" termPositions="true" termOffsets="true"/>
 
     <!--Date matching-->
-    <dynamicField name="*.year" type="sint" indexed="true" stored="true" multiValued="true" omitNorms="true" />
+    <dynamicField name="*_year" type="sint" indexed="true" stored="true" multiValued="true" omitNorms="true" />
     <dynamicField name="*_dt" type="date" indexed="true" stored="true" multiValued="false" omitNorms="true"  docValues="true"/>
 
     <!--Used for matching on all other fields -->